Register booster



FIG. 1 is a top perspective view of a register booster showing my new design;

FIG. 2 is a top plan view of the design shown in FIG. 1;

FIG. 3 is a front elevation view of the design shown in FIG. 1, the rear elevational view being identical;

FIG. 4 is a side elevational view of the design shown in FIG. 1; and,

FIG. 5 is another side elevational view of the design shown in FIG. 1.

The broken lines of FIGS. 1–5 illustrate portions of the register booster that form no part of the claimed design. 

The ornamental design for a register booster, as shown and described. 